Chemistry, 26.06.2019 17:30 baptistatm51976
Polonium is a rare element with 33 radioisotopes. the most common one, 210po, has 82 protons and 128 neutrons. when 210po decays, it emits an alpha particle, which is a helium nucleus (2 protons and 2 neutrons). 210po decay is tricky to detect because alpha particles do not carry very much energy compared to other forms of radiation. for example, they can be stopped by a single sheet of paper or a few inches of air. that is one reason why authorities failed to discover toxic amounts of 210po in the body of former kgb agent alexander litvinenko until after he died suddenly and mysteriously in 2006. what element does an atom of 210po change into after it emits an alpha particle?
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Chemistry, 23.06.2019 10:00
You dissolve 8.65 grams of lead(l) nitrate in water and then you add 2 50 grams of aluminum. this reaction occurs 2ai(s)+ 3pb(no3)2(aq) -3pb(s)+ 2aino3la(aq) the theoretical yield of solid lead?
Answers: 1
Chemistry, 23.06.2019 11:40
Which of the following would have the lowest average kinetic energy
Answers: 1
Polonium is a rare element with 33 radioisotopes. the most common one, 210po, has 82 protons and 128...
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